$ git clone -n https://src.fedoraproject.org/rpms/rubygem-sassc-rails.git /var/lib/mock/f39-build-1722561-41229/root/chroot_tmpdir/scmroot/rubygem-sassc-rails
Cloning into '/var/lib/mock/f39-build-1722561-41229/root/chroot_tmpdir/scmroot/rubygem-sassc-rails'...
$ git fetch origin 711f0e90afb347a89f23b2c085bcb71935784a31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-sassc-rails
 * [new ref]         711f0e90afb347a89f23b2c085bcb71935784a31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 711f0e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild